{"id":1075,"date":"2021-01-14T17:47:20","date_gmt":"2021-01-14T08:47:20","guid":{"rendered":"https:\/\/jupiter.kyoto-svp.com\/?p=1075"},"modified":"2021-01-14T17:47:22","modified_gmt":"2021-01-14T08:47:22","slug":"2021%e5%b9%b4%e6%9c%a8%e6%98%9f%e6%8e%a2%e6%9f%bb%e6%a9%9f%e3%82%b8%e3%83%a5%e3%83%8e%e3%83%bc%e3%81%ae%e6%9c%80%e6%96%b0%e8%a8%88%e7%94%bb%e3%80%90%e8%a9%b3%e7%b4%b0%e3%80%91","status":"publish","type":"post","link":"https:\/\/jupiter.kyoto-svp.com\/?p=1075","title":{"rendered":"2021\u5e74\u6728\u661f\u63a2\u67fb\u6a5f\u30b8\u30e5\u30ce\u30fc\u306e\u6700\u65b0\u8a08\u753b\u3010\u8a73\u7d30\u3011"},"content":{"rendered":"\n<p class=\"has-vivid-cyan-blue-color has-text-color\">\u5148\u306bNASA\u306e\u516c\u5f0f\u30b5\u30a4\u30c8\u3067\u89e6\u308c\u3089\u308c\u3066\u3044\u305f\u30b8\u30e5\u30ce\u30fc\u306e\u30df\u30c3\u30b7\u30e7\u30f3\u5ef6\u9577\u306b\u3064\u3044\u3066\u3001\u5e7e\u5206\u8a73\u7d30\u306b\u89e6\u308c\u305f\u8a18\u4e8b\u304c\u63b2\u8f09\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p class=\"has-vivid-cyan-blue-color has-text-color\">\u30b8\u30e5\u30ce\u30fc\u306f\u3082\u3068\u3082\u30682021\u5e747\u6708\u307e\u3067\u306e\u30df\u30c3\u30b7\u30e7\u30f3\u3067\u3057\u305f\u304c\u3001\u4eca\u56de\u671f\u9593\u3092\u5ef6\u9577\u3057\u3001\u6728\u661f\u306e\u885b\u661f\uff08\u30ac\u30cb\u30e1\u30c7\u3001\u30a8\u30a6\u30ed\u30d1\u3001\u30a4\u30aa\uff09\u3068\u6728\u661f\u306e\u74b0\u306b\u6700\u63a5\u8fd1\u3057\u3066\u89b3\u6e2c\u3059\u308b\u3053\u3068\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"has-vivid-cyan-blue-color has-text-color\">\u4ee5\u4e0b\u304cNASA\u306e\u30aa\u30ea\u30b8\u30ca\u30eb\u8a18\u4e8b\u306eURL\u3067\u3059\u3002<\/p>\n\n\n\n<p><a rel=\"noreferrer noopener\" href=\"https:\/\/www.nasa.gov\/feature\/jpl\/nasa-s-juno-mission-expands-into-the-future\" target=\"_blank\">NASA\u2019s Juno Mission Expands Into the Future | NASA<\/a><\/p>\n\n\n\n<p class=\"has-vivid-cyan-blue-color has-text-color\">\u4ee5\u4e0b\u306e\u30aa\u30ea\u30b8\u30ca\u30eb\u8a18\u4e8b\u3068\u548c\u8a33\u3067\u3059\u3002<\/p>\n\n\n\n<h2>NASA\u2019s Juno Mission Expands Into the Future<\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/jupiter.kyoto-svp.com\/wp-content\/uploads\/2021\/01\/pia23445_0.jpg\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" width=\"985\" height=\"554\" src=\"https:\/\/jupiter.kyoto-svp.com\/wp-content\/uploads\/2021\/01\/pia23445_0.jpg\" alt=\"\" class=\"wp-image-1078\" srcset=\"https:\/\/jupiter.kyoto-svp.com\/wp-content\/uploads\/2021\/01\/pia23445_0.jpg 985w, https:\/\/jupiter.kyoto-svp.com\/wp-content\/uploads\/2021\/01\/pia23445_0-300x169.jpg 300w, https:\/\/jupiter.kyoto-svp.com\/wp-content\/uploads\/2021\/01\/pia23445_0-768x432.jpg 768w\" sizes=\"(max-width: 985px) 100vw, 985px\" \/><\/a><figcaption><em>Credits: NASA\/JPL-Caltech\/SwRI\/MSSS Image processing by Tanya Oleksuik, \u00a9 CC BY<\/em><\/figcaption><\/figure>\n\n\n\n<p>The spacecraft, which has been gathering data on the gas giant since July 2016, will become an explorer of the full Jovian system \u2013 Jupiter and its rings and moons.<\/p>\n\n\n\n<p class=\"has-vivid-cyan-blue-color has-text-color\">2016\u5e747\u6708\u304b\u3089\u5de8\u5927\u30ac\u30b9\u60d1\u661f\u306b\u95a2\u3059\u308b\u30c7\u30fc\u30bf\u3092\u53ce\u96c6\u3057\u3066\u3044\u308b\u63a2\u67fb\u6a5f\u306f\u3001\u6728\u661f\u306e\u74b0\u3068\u885b\u661f\u304b\u3089\u306a\u308b\u6728\u661f\u7cfb\u5168\u4f53\u3092\u63a2\u67fb\u3059\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>NASA has authorized a mission extension for its Juno spacecraft exploring Jupiter. The agency\u2019s most distant planetary orbiter will now continue its investigation of the solar system\u2019s largest planet through September 2025, or until the spacecraft\u2019s end of life. This expansion tasks Juno with becoming an explorer of the full Jovian system \u2013 Jupiter and its rings and moons \u2013 with multiple rendezvous planned for three of Jupiter\u2019s most intriguing Galilean moons: Ganymede, Europa, and Io.<\/p>\n\n\n\n<p class=\"has-vivid-cyan-blue-color has-text-color\">NASA\u306f\u3001\u6728\u661f\u3092\u63a2\u67fb\u3059\u308b\u30b8\u30e5\u30ce\u30fc\u63a2\u67fb\u6a5f\u306e\u30df\u30c3\u30b7\u30e7\u30f3\u5ef6\u9577\u3092\u78ba\u5b9a\u3057\u307e\u3057\u305f\u3002\u6728\u661f\u8ecc\u9053\u3092\u5468\u56de\u3057\u3066\u3044\u308b\u63a2\u67fb\u6a5f\u306f\u30012025\u5e749\u6708\u307e\u3067\u3001\u307e\u305f\u306f\u63a2\u67fb\u6a5f\u306e\u88c5\u7f6e\u5bff\u547d\u304c\u5c3d\u304d\u308b\u307e\u3067\u3001\u592a\u967d\u7cfb\u6700\u5927\u306e\u60d1\u661f\u306e\u63a2\u67fb\u6d3b\u52d5\u3092\u7d99\u7d9a\u3057\u307e\u3059\u3002\u3053\u306e\u30df\u30c3\u30b7\u30e7\u30f3\u5ef6\u9577\u306b\u3088\u308a\u3001\u30b8\u30e5\u30ce\u30fc\u306f\u6728\u661f\u306e\u74b0\u3068\u885b\u661f\u306e\u6728\u661f\u7cfb\u5168\u4f53\u306e\u63a2\u7d22\u3092\u884c\u3046\u306e\u3067\u3001\u305d\u306e\u671f\u9593\u4e2d\u306b\u6728\u661f\u306e\u6700\u3082\u9b45\u529b\u7684\u306a\u30ac\u30ea\u30ec\u30aa\u885b\u661f\u306e3\u3064\u3067\u3042\u308b\u30ac\u30cb\u30e1\u30c7\u3001\u30a8\u30a6\u30ed\u30d1\u3001\u30a4\u30aa\u306b\u8907\u6570\u56de\u306e\u6700\u63a5\u8fd1\u304c\u4e88\u5b9a\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u201cSince its first orbit in 2016, Juno has delivered one revelation after another about the inner workings of this massive gas giant,\u201d said principal investigator Scott Bolton of the Southwest Research Institute in San Antonio. \u201cWith the extended mission, we will answer fundamental questions that arose during Juno\u2019s prime mission while reaching beyond the planet to explore Jupiter\u2019s ring system and Galilean satellites.\u201d<\/p>\n\n\n\n<p class=\"has-vivid-cyan-blue-color has-text-color\">\u30b5\u30f3\u30a2\u30f3\u30c8\u30cb\u30aa\u306e\u30b5\u30a6\u30b9\u30a6\u30a8\u30b9\u30c8\u7814\u7a76\u6240\u306e\u4e3b\u4efb\u7814\u7a76\u54e1\u30b9\u30b3\u30c3\u30c8\u30dc\u30eb\u30c8\u30f3\u306f\u3001\u300c2016\u5e74\u3001\u6700\u521d\u306b\u6728\u661f\u8ecc\u9053\u6295\u5165\u3057\u3066\u4ee5\u6765\u3001\u30b8\u30e5\u30ce\u30fc\u306f\u3053\u306e\u5de8\u5927\u306a\u30ac\u30b9\u60d1\u661f\u306e\u5185\u90e8\u306e\u4ed5\u7d44\u307f\u306b\u3064\u3044\u3066\u6b21\u3005\u3068\u5553\u793a\u3092\u63d0\u4f9b\u3057\u3066\u304d\u307e\u3057\u305f\u3002 \u300d\u300c\u62e1\u5f35\u30df\u30c3\u30b7\u30e7\u30f3\u3067\u306f\u3001\u6728\u661f\u306e\u74b0\u3068\u30ac\u30ea\u30ec\u30aa\u885b\u661f\u3092\u63a2\u67fb\u3059\u308b\u305f\u3081\u306e\u8ecc\u9053\u306b\u9054\u3059\u308b\u307e\u3067\u306e\u9593\u306b\u3001\u30b8\u30e5\u30ce\u30fc\u306e\u4e3b\u8981\u30df\u30c3\u30b7\u30e7\u30f3\u306b\u95a2\u3059\u308b\u8cea\u554f\u306b\u304a\u7b54\u3048\u307e\u3059\u3002\u300d\u3068\u8ff0\u3079\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>Proposed in 2003 and launched in 2011, Juno arrived at Jupiter on July 4, 2016. The prime mission will be completed in July 2021. The extended mission involves 42 additional orbits, including close passes of Jupiter\u2019s north polar cyclones; flybys of Ganymede, Europa, and Io; as well as the first extensive exploration of the faint rings encircling the planet.<\/p>\n\n\n\n<p class=\"has-vivid-cyan-blue-color has-text-color\">2003\u5e74\u306b\u8a08\u753b\u3055\u308c\u30012011\u5e74\u306b\u6253\u3061\u4e0a\u3052\u3089\u308c\u305f\u30b8\u30e5\u30ce\u30fc\u306f\u30012016\u5e747\u67084\u65e5\u306b\u6728\u661f\u306b\u5230\u7740\u3057\u307e\u3057\u305f\u3002\u4e3b\u8981\u306a\u30df\u30c3\u30b7\u30e7\u30f3\u306f2021\u5e747\u6708\u306b\u5b8c\u4e86\u3057\u307e\u3059\u3002\u62e1\u5f35\u30df\u30c3\u30b7\u30e7\u30f3\u306b\u306f\u3001\u6728\u661f\u306e\u5317\u6975\u306b\u3042\u308b\u30b5\u30a4\u30af\u30ed\u30f3\u3078\u306e\u63a5\u8fd1\u901a\u904e\u3092\u542b\u308042\u306e\u8ffd\u52a0\u8ecc\u9053\u304c\u542b\u307e\u308c\u307e\u3059\u3002\u540c\u69d8\u306b\u30ac\u30cb\u30e1\u30c7\u3001\u30a8\u30a6\u30ed\u30d1\u3001\u30a4\u30aa\u3078\u306e\u6700\u63a5\u8fd1\u3001\u6728\u661f\u3092\u53d6\u308a\u5dfb\u304f\u304b\u3059\u304b\u306a\u74b0\u306e\u521d\u3068\u306a\u308b\u5927\u898f\u6a21\u306a\u63a2\u67fb\u3082\u8a08\u753b\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/jupiter.kyoto-svp.com\/wp-content\/uploads\/2021\/01\/pia24308-16.jpg\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" width=\"985\" height=\"347\" src=\"https:\/\/jupiter.kyoto-svp.com\/wp-content\/uploads\/2021\/01\/pia24308-16.jpg\" alt=\"\" class=\"wp-image-1077\" srcset=\"https:\/\/jupiter.kyoto-svp.com\/wp-content\/uploads\/2021\/01\/pia24308-16.jpg 985w, https:\/\/jupiter.kyoto-svp.com\/wp-content\/uploads\/2021\/01\/pia24308-16-300x106.jpg 300w, https:\/\/jupiter.kyoto-svp.com\/wp-content\/uploads\/2021\/01\/pia24308-16-768x271.jpg 768w\" sizes=\"(max-width: 985px) 100vw, 985px\" \/><\/a><figcaption><strong><em>Credits: NASA\/JPL-Caltech\/SwRI<\/em><\/strong><\/figcaption><\/figure>\n\n\n\n<p>\u201cBy extending the science goals of this important orbiting observatory, the Juno team will start tackling a breadth of science historically required of flagships,\u201d said Lori Glaze, planetary science division director at NASA Headquarters in Washington. \u201cThis represents an efficient and innovative advance for NASA\u2019s solar system exploration strategy.\u201d<\/p>\n\n\n\n<p class=\"has-vivid-cyan-blue-color has-text-color\">\u300c\u3053\u306e\u62e1\u5f35\u30df\u30c3\u30b7\u30e7\u30f3\u306b\u304a\u3051\u308b\u91cd\u8981\u306a\u8ecc\u9053\u304b\u3089\u306e\u63a2\u67fb\u306b\u3088\u308b\u30b4\u30fc\u30eb\u306f\u3001\u30b8\u30e5\u30ce\u30fc\u30c1\u30fc\u30e0\u304c\u3001\u79d1\u5b66\u306b\u304a\u3051\u308b\u6b74\u53f2\u7684\u306a\u63a2\u7d22\u6d3b\u52d5\u306b\u53d6\u308a\u7d44\u3080\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002\u300d\u3068\u3001\u30ef\u30b7\u30f3\u30c8\u30f3\u306eNASA\u672c\u90e8\u306e\u60d1\u661f\u79d1\u5b66\u90e8\u9580\u30c7\u30a3\u30ec\u30af\u30bf\u30fc\u3067\u3042\u308b\u30ed\u30fc\u30ea\u30fc\u30b0\u30e9\u30c3\u30bc\u306f\u8ff0\u3079\u3066\u3044\u307e\u3059\u3002 \u300c\u3053\u308c\u306fNASA\u306e\u592a\u967d\u7cfb\u63a2\u67fb\u6226\u7565\u306e\u52b9\u7387\u7684\u3067\u9769\u65b0\u7684\u306a\u9032\u6b69\u3068\u306a\u308b\u3067\u3057\u3087\u3046\u3002\u300d<\/p>\n\n\n\n<p>The data Juno collects will contribute to the goals of the next generation of missions to the Jovian system \u2013 NASA\u2019s Europa Clipper and the ESA (European Space Agency) JUpiter ICy moons Explorer (JUICE) mission. Juno\u2019s investigation of Jupiter\u2019s volcanic moon Io addresses many science goals identified by the National Academy of Sciences for a future Io explorer mission.<\/p>\n\n\n\n<p class=\"has-vivid-cyan-blue-color has-text-color\">\u30b8\u30e5\u30ce\u30fc\u304c\u53ce\u96c6\u3059\u308b\u30c7\u30fc\u30bf\u306f\u3001\u6728\u661f\u30b7\u30b9\u30c6\u30e0\u306b\u5bfe\u3059\u308b\u6b21\u4e16\u4ee3\u306e\u30df\u30c3\u30b7\u30e7\u30f3\u3067\u3042\u308bNASA\u306e\u30a8\u30a6\u30ed\u30d1\u30af\u30ea\u30c3\u30d1\u30fc\u3068ESA\uff08\u6b27\u5dde\u5b87\u5b99\u6a5f\u95a2\uff09\u306eJUpiter ICy moons Explorer\uff08JUICE\uff09\u30df\u30c3\u30b7\u30e7\u30f3\u306e\u76ee\u6a19\u306b\u5bc4\u4e0e\u3059\u308b\u3053\u3068\u3067\u3057\u3087\u3046\u3002\u6728\u661f\u306e\u706b\u5c71\u885b\u661f\u30a4\u30aa\u306b\u95a2\u3059\u308b\u30b8\u30e5\u30ce\u30fc\u306e\u63a2\u67fb\u306f\u3001\u5c06\u6765\u306e\u30a4\u30aa\u63a2\u67fb\u8a08\u753b\u306e\u305f\u3081\u306b\u56fd\u7acb\u79d1\u5b66\u30a2\u30ab\u30c7\u30df\u30fc\u306b\u3088\u3063\u3066\u8a2d\u5b9a\u3055\u308c\u305f\u591a\u304f\u306e\u79d1\u5b66\u76ee\u6a19\u306b\u53d6\u308a\u7d44\u3080\u3053\u3068\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>The extended mission\u2019s science campaigns will expand on discoveries Juno has already made about Jupiter\u2019s interior structure, internal magnetic field, atmosphere (including polar cyclones, deep atmosphere, and aurora), and magnetosphere.<\/p>\n\n\n\n<p class=\"has-vivid-cyan-blue-color has-text-color\">\u62e1\u5f35\u30df\u30c3\u30b7\u30e7\u30f3\u306e\u79d1\u5b66\u63a2\u67fb\u8a08\u753b\u306f\u3001\u6728\u661f\u306e\u5185\u90e8\u69cb\u9020\u3001\u5185\u90e8\u78c1\u5834\u3001\u5927\u6c17\uff08\u6975\u306b\u3042\u308b\u30b5\u30a4\u30af\u30ed\u30f3\u3001\u6df1\u5c64\u5927\u6c17\u3001\u30aa\u30fc\u30ed\u30e9\u3092\u542b\u3080\uff09\u3001\u304a\u3088\u3073\u78c1\u6c17\u570f\u306b\u3064\u3044\u3066\u30b8\u30e5\u30ce\u30fc\u304c\u3059\u3067\u306b\u884c\u3063\u305f\u767a\u898b\u306b\u57fa\u3065\u3044\u3066\u62e1\u5f35\u3055\u308c\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/jupiter.kyoto-svp.com\/wp-content\/uploads\/2021\/01\/juno20210114.jpg\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" width=\"1024\" height=\"620\" src=\"https:\/\/jupiter.kyoto-svp.com\/wp-content\/uploads\/2021\/01\/juno20210114-1024x620.jpg\" alt=\"\" class=\"wp-image-1082\" srcset=\"https:\/\/jupiter.kyoto-svp.com\/wp-content\/uploads\/2021\/01\/juno20210114-1024x620.jpg 1024w, https:\/\/jupiter.kyoto-svp.com\/wp-content\/uploads\/2021\/01\/juno20210114-300x182.jpg 300w, https:\/\/jupiter.kyoto-svp.com\/wp-content\/uploads\/2021\/01\/juno20210114-768x465.jpg 768w, https:\/\/jupiter.kyoto-svp.com\/wp-content\/uploads\/2021\/01\/juno20210114.jpg 1037w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><figcaption>Credit: NASA\/JPL-Caltech<\/figcaption><\/figure>\n\n\n\n<p>\u201cWith this extension, Juno becomes its own follow-on mission,\u201d said Steve Levin, Juno project scientist at NASA\u2019s Jet Propulsion Laboratory in Southern California. \u201cClose-up observations of the pole, radio occultations\u201d \u2013 a remote sensing technique to measure properties of a planetary atmosphere or ring systems \u2013 \u201csatellite flybys, and focused magnetic field studies combine to make a new mission, the next logical step in our exploration of the Jovian system.\u201d<\/p>\n\n\n\n<p class=\"has-vivid-cyan-blue-color has-text-color\">\u300c\u3053\u306e\u62e1\u5f35\u30df\u30c3\u30b7\u30e7\u30f3\u306b\u3088\u308a\u3001\u30b8\u30e5\u30ce\u30fc\u306f\u72ec\u81ea\u306b\u5f8c\u7d9a\u30df\u30c3\u30b7\u30e7\u30f3\u3092\u5b9f\u65bd\u3059\u308b\u3053\u3068\u3068\u306a\u308a\u307e\u3059\u300d\u3068\u5357\u30ab\u30ea\u30d5\u30a9\u30eb\u30cb\u30a2\u306b\u3042\u308bNASA\u306e\u30b8\u30a7\u30c3\u30c8\u63a8\u9032\u7814\u7a76\u6240\u306e\u30b8\u30e5\u30ce\u30fc\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u6240\u5c5e\u79d1\u5b66\u8005\u3067\u3042\u308b\u30b9\u30c6\u30a3\u30fc\u30d6\u30ec\u30d3\u30f3\u306f\u8ff0\u3079\u3066\u3044\u307e\u3059\u3002\u300c\u6975\u5730\u57df\u306e\u30af\u30ed\u30fc\u30ba\u30a2\u30c3\u30d7\u89b3\u6e2c\u3001\u96fb\u6ce2\u63a9\u853d\u300d-\u60d1\u661f\u306e\u5927\u6c17\u307e\u305f\u306f\u74b0\u306e\u7279\u6027\u3092\u6e2c\u5b9a\u3059\u308b\u305f\u3081\u306e\u30ea\u30e2\u30fc\u30c8\u30bb\u30f3\u30b7\u30f3\u30b0\u6280\u8853-\u300c\u885b\u661f\u3078\u306e\u6700\u63a5\u8fd1\u3068\u96c6\u4e2d\u78c1\u5834\u7814\u7a76\u3092\u7d44\u307f\u5408\u308f\u305b\u305f\u65b0\u3057\u3044\u30df\u30c3\u30b7\u30e7\u30f3\u306f\u3001\u6728\u661f\u7cfb\u306e\u63a2\u67fb\u306b\u304a\u3051\u308b\u6b21\u306e\u30b9\u30c6\u30c3\u30d7\u3068\u306a\u308b\u3082\u306e\u3067\u3059\u3002\u300d<\/p>\n\n\n\n<p>Jupiter\u2019s enigmatic Great Blue Spot, an isolated patch of intense magnetic field near the planet\u2019s equator, will be the target of a high-spatial-resolution magnetic survey during six flybys early in the extended mission. As Juno\u2019s orbit evolves, multiple flybys of the moons Ganymede (2), Europa (3), and Io (11) are planned, as well as multiple passages through Jupiter\u2019s tenuous rings.<\/p>\n\n\n\n<p class=\"has-vivid-cyan-blue-color has-text-color\">\u6728\u661f\u306e\u8b0e\u3081\u3044\u305f\u30b0\u30ec\u30fc\u30c8\u30d6\u30eb\u30fc\u30b9\u30dd\u30c3\u30c8\u306f\u3001\u8d64\u9053\u8fd1\u304f\u306e\u5f37\u70c8\u306a\u78c1\u5834\u306e\u5b64\u7acb\u3057\u305f\u5b58\u5728\u3067\u3042\u308a\u3001\u62e1\u5f35\u30df\u30c3\u30b7\u30e7\u30f3\u306e\u521d\u671f\u306e6\u56de\u306e\u5468\u56de\u4e2d\u306b\u9ad8\u5206\u89e3\u80fd\u3067\u306e\u78c1\u6c17\u63a2\u67fb\u306e\u5bfe\u8c61\u306b\u306a\u308a\u307e\u3059\u3002\u30b8\u30e5\u30ce\u30fc\u306e\u8ecc\u9053\u5468\u56de\u56de\u6570\u304c\u9032\u3080\u306b\u3064\u308c\u3066\u3001\u30ac\u30cb\u30e1\u30c7\uff082\uff09\u3001\u30e8\u30fc\u30ed\u30c3\u30d1\uff083\uff09\u3001\u30a4\u30aa\uff0811\uff09\u306e\u885b\u661f\u306b\u53ca\u3076\u8907\u6570\u56de\u306e\u6700\u63a5\u8fd1\u3068\u3001\u6728\u661f\u306e\u5e0c\u8584\u306a\u74b0\u306e\u8907\u6570\u56de\u306e\u901a\u904e\u304c\u8a08\u753b\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>Juno will also fly through the Europa and Io tori \u2013 ring-shaped clouds of ions \u2013 on multiple occasions, characterizing the radiation environment near these satellites to better prepare the Europa Clipper and JUICE missions for optimizing observation strategies and planning, science priorities, and mission design. The extended mission also adds planetary geology and ring dynamics to Juno\u2019s extensive list of science investigations.<\/p>\n\n\n\n<p class=\"has-vivid-cyan-blue-color has-text-color\">\u30b8\u30e5\u30ce\u30fc\u306f\u307e\u305f\u3001\u30a8\u30a6\u30ed\u30d1\u3068\u30a4\u30aa\u306e\u74b0\uff08\u30ea\u30f3\u30b0\u72b6\u306e\u30a4\u30aa\u30f3\u306e\u96f2\uff09\u3092\u4f55\u5ea6\u3082\u98db\u884c\u3057\u3001\u3053\u308c\u3089\u306e\u885b\u661f\u306e\u8fd1\u304f\u306e\u653e\u5c04\u7dda\u74b0\u5883\u3092\u89b3\u6e2c\u3057\u3001\u305d\u306e\u7d50\u679c\u306b\u3088\u308a\u30a8\u30a6\u30ed\u30d1\u30af\u30ea\u30c3\u30d1\u30fc\u3068JUICE\u306e\u30df\u30c3\u30b7\u30e7\u30f3\u304c\u3088\u308a\u9069\u5207\u306b\u306a\u308b\u3088\u3046\u306b\u3001\u6226\u7565\u3068\u8a08\u753b\u3001\u512a\u5148\u9806\u4f4d\u306a\u3069\u306e\u6e96\u5099\u3068\u306a\u308a\u307e\u3059\u3002\u62e1\u5f35\u3055\u308c\u305f\u30df\u30c3\u30b7\u30e7\u30f3\u306f\u307e\u305f\u3001\u60d1\u661f\u5730\u8cea\u5b66\u3068\u74b0\u306e\u30c0\u30a4\u30ca\u30df\u30af\u30b9\u3092\u30b8\u30e5\u30ce\u30fc\u306e\u5e83\u7bc4\u306a\u79d1\u5b66\u8abf\u67fb\u30ea\u30b9\u30c8\u306b\u8ffd\u52a0\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p><strong>An Evolving Orbit<\/strong><\/p>\n\n\n\n<p>The natural evolution of Juno\u2019s orbit around the gas giant provides the wealth of new science opportunities that the extended mission capitalizes on. Every science pass sends the solar-powered spacecraft zooming low over Jupiter\u2019s cloud tops, collecting data from a unique vantage point no other spacecraft has enjoyed.<\/p>\n\n\n\n<p>The point during each orbit where Juno comes closest to the planet is called perijove (or PJ). Over the course of the mission, Juno\u2019s perijoves have migrated northward, dramatically improving resolution over the northern hemisphere. The design of the extended mission takes advantage of the continued northward migration of these perijoves to sharpen its view of the multiple cyclones encircling the north pole while incorporating ring and Galilean moon flybys.<\/p>\n\n\n\n<p>\u201cThe mission designers have done an amazing job crafting an extended mission that conserves the mission\u2019s single most valuable onboard resource \u2013 fuel,\u201d said Ed Hirst, the Juno project manager at JPL. \u201cGravity assists from multiple satellite flybys steer our spacecraft through the Jovian system while providing a wealth of science opportunities.\u201d The satellite flybys also reduce Juno\u2019s orbital period, which increases the total number of science orbits that can be obtained.\u201d<\/p>\n\n\n\n<p>The satellite encounters begin with a low-altitude flyby of Ganymede on June 7, 2021 (PJ34), which reduces the orbital period from about 53 days to 43 days. That flyby sets up a close flyby of Europa on Sept. 29, 2022 (PJ45), reducing the orbital period further to 38 days. A pair of close Io flybys, on Dec. 30, 2023 (PJ57), and Feb. 3, 2024 (PJ58), combine to reduce the orbital period to 33 days.<\/p>\n\n\n\n<p><strong>More About the Mission<\/strong><\/p>\n\n\n\n<p>JPL, a division of Caltech in Pasadena, California, manages the Juno mission for the principal investigator, Scott J. Bolton, of the Southwest Research Institute in San Antonio. Juno is part of NASA\u2019s New Frontiers Program, which is managed at NASA\u2019s Marshall Space Flight Center in Huntsville, Alabama, for the agency\u2019s Science Mission Directorate in Washington. Lockheed Martin Space in Denver built and operates the spacecraft.<\/p>\n\n\n\n<p>More information about Juno is available at:<\/p>\n\n\n\n<p>https:\/\/www.nasa.gov\/juno<\/p>\n\n\n\n<p>https:\/\/www.missionjuno.swri.edu<\/p>\n\n\n\n<p>Follow the mission on Facebook and Twitter at:<\/p>\n\n\n\n<p>https:\/\/www.facebook.com\/NASASolarSystem<\/p>\n\n\n\n<p>DC Agle<br>Jet Propulsion Laboratory, Pasadena, Calif.<br>818-393-9011<br>agle@jpl.nasa.gov<\/p>\n\n\n\n<p>Grey Hautaluoma \/ Alana Johnson<br>NASA Headquarters, Washington<br>202-358-0668 \/ 202-358-1501<br>grey.hautaluoma-1@nasa.gov \/ alana.r.johnson@nasa.gov<\/p>\n\n\n\n<p>Deb Schmid<br>Southwest Research Institute, San Antonio<br>210-522-2254<br>dschmid@swri.org<\/p>\n\n\n\n<p>2021-008<\/p>\n\n\n\n<p>Last Updated: Jan. 14, 2021<br>Editor: Tony Greicius<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5148\u306bNASA\u306e\u516c\u5f0f\u30b5\u30a4\u30c8\u3067\u89e6\u308c\u3089\u308c\u3066\u3044\u305f\u30b8\u30e5\u30ce\u30fc\u306e\u30df\u30c3\u30b7\u30e7\u30f3\u5ef6\u9577\u306b\u3064\u3044\u3066\u3001\u5e7e\u5206\u8a73\u7d30\u306b\u89e6\u308c\u305f\u8a18\u4e8b\u304c\u63b2\u8f09\u3055\u308c\u307e\u3057\u305f\u3002 \u30b8\u30e5\u30ce\u30fc\u306f\u3082\u3068\u3082\u30682021\u5e747\u6708\u307e\u3067\u306e\u30df\u30c3\u30b7\u30e7\u30f3\u3067\u3057\u305f\u304c\u3001\u4eca\u56de\u671f\u9593\u3092\u5ef6\u9577\u3057\u3001\u6728\u661f\u306e\u885b\u661f\uff08\u30ac\u30cb\u30e1\u30c7\u3001\u30a8\u30a6\u30ed\u30d1&#8230;<\/p>\n","protected":false},"author":1,"featured_media":1077,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[20,14],"tags":[],"_links":{"self":[{"href":"https:\/\/jupiter.kyoto-svp.com\/index.php?rest_route=\/wp\/v2\/posts\/1075"}],"collection":[{"href":"https:\/\/jupiter.kyoto-svp.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jupiter.kyoto-svp.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jupiter.kyoto-svp.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jupiter.kyoto-svp.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1075"}],"version-history":[{"count":10,"href":"https:\/\/jupiter.kyoto-svp.com\/index.php?rest_route=\/wp\/v2\/posts\/1075\/revisions"}],"predecessor-version":[{"id":1088,"href":"https:\/\/jupiter.kyoto-svp.com\/index.php?rest_route=\/wp\/v2\/posts\/1075\/revisions\/1088"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/jupiter.kyoto-svp.com\/index.php?rest_route=\/wp\/v2\/media\/1077"}],"wp:attachment":[{"href":"https:\/\/jupiter.kyoto-svp.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1075"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jupiter.kyoto-svp.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1075"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jupiter.kyoto-svp.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1075"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}